Support for more than 64k ELF sections.

[thirdparty/binutils-gdb.git] / bfd / elfxx-ia64.c

diff --git a/bfd/elfxx-ia64.c b/bfd/elfxx-ia64.c
index 6abd6909dd7cb60fd87f12b6ceab7cd6defdc4ad..8f43563c43852987d08ee946c3d0cff69ca9daab 100644 (file)
--- a/bfd/elfxx-ia64.c
+++ b/bfd/elfxx-ia64.c
@@ -644,6 +644,7 @@ elfNN_ia64_relax_section (abfd, sec, link_info, again)
     };
 
   Elf_Internal_Shdr *symtab_hdr;
+  Elf_Internal_Shdr *shndx_hdr;
   Elf_Internal_Rela *internal_relocs;
   Elf_Internal_Rela *free_relocs = NULL;
   Elf_Internal_Rela *irel, *irelend;
@@ -651,6 +652,7 @@ elfNN_ia64_relax_section (abfd, sec, link_info, again)
   bfd_byte *free_contents = NULL;
   ElfNN_External_Sym *extsyms;
   ElfNN_External_Sym *free_extsyms = NULL;
+  Elf_External_Sym_Shndx *shndx_buf = NULL;
   struct elfNN_ia64_link_hash_table *ia64_info;
   struct one_fixup *fixups = NULL;
   boolean changed_contents = false;
@@ -712,18 +714,34 @@ elfNN_ia64_relax_section (abfd, sec, link_info, again)
        goto error_return;
     }
 
-  /* Read this BFD's symbols.  */
+  /* Read this BFD's local symbols.  */
   if (symtab_hdr->contents != NULL)
     extsyms = (ElfNN_External_Sym *) symtab_hdr->contents;
   else
     {
-      extsyms = (ElfNN_External_Sym *) bfd_malloc (symtab_hdr->sh_size);
+      bfd_size_type amt;
+
+      amt = symtab_hdr->sh_info * sizeof (ElfNN_External_Sym);
+      extsyms = (ElfNN_External_Sym *) bfd_malloc (amt);
       if (extsyms == NULL)
        goto error_return;
       free_extsyms = extsyms;
       if (bfd_seek (abfd, symtab_hdr->sh_offset, SEEK_SET) != 0
-         || (bfd_bread (extsyms, symtab_hdr->sh_size, abfd)
-             != symtab_hdr->sh_size))
+         || bfd_bread (extsyms, amt, abfd) != amt)
+       goto error_return;
+    }
+
+  shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr;
+  if (shndx_hdr->sh_size != 0)
+    {
+      bfd_size_type amt;
+
+      amt = symtab_hdr->sh_info * sizeof (Elf_External_Sym_Shndx);
+      shndx_buf = (Elf_External_Sym_Shndx *) bfd_malloc (amt);
+      if (shndx_buf == NULL)
+       goto error_return;
+      if (bfd_seek (abfd, shndx_hdr->sh_offset, SEEK_SET) != 0
+         || bfd_bread (shndx_buf, amt, abfd) != amt)
        goto error_return;
     }
 
@@ -741,20 +759,21 @@ elfNN_ia64_relax_section (abfd, sec, link_info, again)
       /* Get the value of the symbol referred to by the reloc.  */
       if (ELFNN_R_SYM (irel->r_info) < symtab_hdr->sh_info)
        {
+         ElfNN_External_Sym *esym;
+         Elf_External_Sym_Shndx *shndx;
+
          /* A local symbol.  */
-         bfd_elfNN_swap_symbol_in (abfd,
-                                   extsyms + ELFNN_R_SYM (irel->r_info),
-                                   &isym);
+         esym = extsyms + ELFNN_R_SYM (irel->r_info);
+         shndx = shndx_buf + (shndx_buf ? ELFNN_R_SYM (irel->r_info) : 0);
+         bfd_elfNN_swap_symbol_in (abfd, esym, shndx, &isym);
          if (isym.st_shndx == SHN_UNDEF)
            continue;   /* We can't do anthing with undefined symbols.  */
          else if (isym.st_shndx == SHN_ABS)
            tsec = bfd_abs_section_ptr;
          else if (isym.st_shndx == SHN_COMMON)
            tsec = bfd_com_section_ptr;
-         else if (isym.st_shndx > 0 && isym.st_shndx < SHN_LORESERVE)
-           tsec = bfd_section_from_elf_index (abfd, isym.st_shndx);
          else
-           continue;   /* who knows.  */
+           tsec = bfd_section_from_elf_index (abfd, isym.st_shndx);
 
          toff = isym.st_value;
        }
@@ -922,6 +941,9 @@ elfNN_ia64_relax_section (abfd, sec, link_info, again)
        }
     }
 
+  if (shndx_buf != NULL)
+    free (shndx_buf);
+
   if (free_extsyms != NULL)
     {
       if (! link_info->keep_memory)
@@ -941,6 +963,8 @@ elfNN_ia64_relax_section (abfd, sec, link_info, again)
     free (free_relocs);
   if (free_contents != NULL)
     free (free_contents);
+  if (shndx_buf != NULL)
+    free (shndx_buf);
   if (free_extsyms != NULL)
     free (free_extsyms);
   return false;
@@ -1225,15 +1249,15 @@ elfNN_ia64_aix_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
     }
   else if (sym->st_shndx == SHN_LOOS)
     {
-      int i;
+      unsigned int i;
 
       /* SHN_AIX_SYSCALL: Treat this as any other symbol.  The special symbol
         is only relevant when compiling code for extended system calls.
         Replace the "special" section with .text, if possible.
         Note that these symbols are always assumed to be in .text. */
-      for (i = 1; i < elf_elfheader (abfd)->e_shnum; i++)
+      for (i = 1; i < elf_numsections (abfd); i++)
        {
-         asection * sec = bfd_section_from_elf_index (abfd, (unsigned) i);
+         asection * sec = bfd_section_from_elf_index (abfd, i);
 
          if (sec && strcmp (sec->name, ".text") == 0)
            {